Fireproofing construction.



No. 742,811. PATENTED OCT. 27, 1903. w." P. WILMOTILSE. 1. SMITH & s.GOLLIEK.

PIREPROOFING CONSTRUCTION.

APPLICATION FILED 00125, 1902.

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INVENTORS WITNESSES:

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PATENTED OCT. 27, 1903. E. I. SMITH & S. GOLLIBK.

W. F. WILMOTH FIRBPROOFING CONSTRUCTION.

APPLICATION nun 001225, 1902.

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I0 MODEL.

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Nc. 742,811. Patented October 27, 1903.

UNITED STATES PATENT OFFICE.

lVILLIAM F. WILMOTH AND EDWARD 1. SMITH, OF NEW YORK, N. Y.,

AND STANLEY GOLLIEK, OE JERSEY CITY, NEW JERSEY, ASSIGNORS TO CEMETALFIREPROOEING COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

FIREPROOFING CONSTRUCTION.

SPECIFICATION forming part of Letters Patent No. 742,811, dated October27, 1903. Application filed October 25,1902. Serial No. 128.721. (Nomodel) I times embedded in the concrete. In order to insure good work,it has been found neco essary to employ temporary or false centering,usually of wood, to support the concrete or other plastic material whileit is being laid and while it is setting, the centering being erected inone portion of the building and the concrete laid and then after theconcrete has set the centering being moved to another part of thebuilding and the operation repeated. The expense of this centering isconsiderable, as is the expenseof erecting it and taking it down andmoving it to another part of the building, and there is a considerablewaste of material. Also the laying of the floors can only progressslowly, sin ce the work must proceed intermittently, unless a very largequantity of centering material is used. Instead of employing woodcentering woven wire or similar material is often placed between theiloor-beams to support the concrete; but since the concrete worksthrough the meshes of such material to a considerable extent and sincethe woven wire tends to bag when the concrete is rammed in laying itplaster cannot be laid directly on the under surface of the floor thusformed without great 7 5 To all whom it may concern.-

Beitknownthatwe,W1LLIAMF.W1LMo'rH, residing in the borough of Manhattan,ED- WARD 1. SMITH, residing in the borough of 5 Brooklyn, in the cityand State of New York, and STANLEY GOLLIEK, residing in Jersey City, inthe county of Hudson and State of New Jersey, citizens of the UnitedStates,have invented certain new and useful Improvel0 ments inFireproofing Construction; and we do hereby declare the following to bea full, clear, and exact description of the same, such as will enableothers skilled in the artto which it appertains to make and use thesame.

15 Our invention relates to improvements in Fireproofing constructionfor the floors and ceilings of buildings and the like; and it consistsin novel means for supporting a floor and ceiling from walls orfloor-beams and in 20 various other features of construction,combination, and arrangement of parts, as hereinafter pointed out. p

The invention herein illustrated and described is a modification of thefireproofing 25 construction covered by the application of \V. F.lVilmoth for Letters Patent filed may 10, 1002, Serial No. 106,672. Likethat construction, the one herein described and waste of material.claimed involves the use of suspension mem- The objects of our inventionare 'to avoid 3o bers or suspenders secured at the ends to the use offalse centering, tosupport the floor-beams or other suitable means ofsupconcrete or other plastic material in an import and constitutingtension members, cenproved manner While it is being laid and ter pieces,supports therefor carried by said while it is setting, to insure theformation of suspenders, and concrete or other flooring laid a goodunder surface upon which plaster may 5 upon the center pieces; but thefireproofing be laid directly, to permit the making of the constructionherein described differs from metal parts of the construction instandard that of the said former application in the form sizes and theerection thereof without fitting, and construction of the suspenders, inthe bending, or other change, toprotect the form and construction of thecenter-piece supmetal parts from the action of fire or water,

40 ports, in the means employed for supporting to avoid the use ofcombustible furring-strips the flooring when a flush ceiling is desired,when an air-chamber is to be provided beand in various other features.tween the ceiling and the concrete body above,

The fireproofing constructions now comto cause the concrete to dryrapidly, and to monly used usually comprise a body of conmake the wholeconstruction strong, simple,

4 crete or similar material, which may be apand relatively inexpensive.

plied in a plastic condition, and a series of We will now proceed todescribe our inmetal supports therefor, the whole suspended vention withreference to the accompanying from floor-beams which are themselvesoftendrawings, in which certain forms of fireproofnovel features in bothin order ing construction embodying our invention are illustrated, andwill then point out the claims.

In the drawings, Figure 1 shows a section of a floor and ceiling on aplane transverse to the floor-beams. Fig. 2 shows a section on the lineX X of Fig. 1 at right angles to said figure. Fig. 3 shows a sectionsimilar to Fig. 1 of the construction employed when a flush ceiling isdesired. Fig. 4 shows a sec tion of the construction of Fig. 3 on line YY ing a construction may be employed when an arched ceiling is desired.Fig. 6 shows a section of the construction of Fig. 5 on the line Z Z ofthat figure.

Referring now to the drawings and at first to Figs. 1 and 2 thereof, thesaid figures show floor-beams 1 1 of the usual I form. From the tops ofthese beams are hung suspenders 2, the ends of which are hook-shaped andhook over the tops of the floor-beams. These suspenders are formed fromflat bars orstraps and are not straight throughout, but inclinedownwardly from their ends toward a central porzontal at the endsthereof they are vertical in the central portions 3 thereof. The centralportions 3 of the suspender-rods are depressed that the concrete body orflooring may floor-beams and in order that the inclined portionsbeingsubstantially simple tension members. The central portions 3 of thesuspenders are twisted at right angles its load without bending. Betweenthe suspenders 3 are placed center blocks 4, which center-block supoverthe tops of the suspend ers 3 and spanning the space between adjacentsuspenders. These yolces may be formed of wire orsmall ods bent to theproper shape and embedded in the center blocks. W'henso embedded, theymay be united to the center blocks so firmly as to reinforce saidblocks, forming tension members thereof,and thereby greatly increasingthe strength of the center pieces. Since these center-block supblocks islaid the filling suitable timate contact therewith and also keeps thecenter blocks together. Because of the intimate contact of the concretefilling and the suspenders and center blocks the entire coners receivesupport from said suspenders only at one end, may rest at their otherends upon ledges formed in these blocks '7.

\Vhen a flush ceiling is desired and when of these suspenders aredepressed to nearly the lower edge of the flange-lines of thefloor-beams. The center pieces 4 are suspended from these suspendersFigs. 1 and 2. Instead of laying a continuthe center pieces, as 2, weprefer when the floorand a flush ceiling is desired The constructionthere- The susfloor tiles or slabs 9. by formed is verylight and strong.penders 2 form tension members of the concrete beams 8, being firmlyunited to said concrete by the intimate contact between the concrete andthe meta The fioor-slabs 9 maybe reinforced by metal rods, expanded thisconstruction the end center pieces may be supported from the lowerflanges of the floor-beams by metal strips 10, embedded in said centerpieces and adapted to rest upon the lower flanges of the floor-beams,the end center pieces themselves fitting under the floor-beams andserving to protect the same.

hen an arched ceiling is desired, the suspenders may be arched, members11 abutting at their ends against the fioorbeams, as shown. in Figs. 5and 6, the ing suspended from these arched'suspenders in the same manneras. in the preceding figures.

trated and described that they may be manufactured in standard sizes andlengths and the construction of or the like embedded in them. In

bent to proper form at the factory and that may be used in the desired.\Vhen erecting, it is necessary merely to spring the suspenders slightlyin order to hook them over the floor-beams. The center blocks previouslyformed and having their supportingyokes embedded in them are then hungupon the center pieces, and the concretefilling may be appliedimmediately. It is therefore possible to erect the material very rapidlyand with a minimum of labor. The suspenders need not be supported fromthe floor-beams, although this is usually most convenient. Any suitablesupport for the ends of the suspenders may be used.

It is obvious that our invention is susceptible to many variations andmodifications without departing from the pinciples of constructionherein set forth, and we do not limit ourselves to the particulardetails of construction and arrangement herein illustrated anddescribed.

What we claim is 1. The combination with automatic machinery forming ofthese parts, if

a series of suspenders of oblong section suitably supported,

the wider faces of the'intermediate portions of said suspenders beingvertical and the wider faces of the end portions of said suspendersbeing horizontal, of center-piece supports hun g from said suspenders,and center pieces supported thereby.

2. The combination with a series of suspenders of oblong sectionsuitably supported, the wider faces of the intermediate portions of saidsuspenders being vertical and the wider faces of the end portions ofsaid suspenders being horizontal, of center-piece supports arrangedtransversely between adj acent suspenders, connecting the same, andsupported thereby, and center pieces carried by said supports.

3. The combination with main supportingbeams, and a series of suspendershaving hook-shaped ends hooking over and supported by said beams,

the intermediate portions of said suspenders being of oblong sectionwith the wider faces vertical, of center-piece supports hung from saidsuspenders, and cen ter pieces supported thereby.

at. The combination, with mainsupportingbeams, and a series ofsuspenders hung from the tops of said beams but depressed in theircentral portions below the tops of said beams, of center piece supportsarranged transversely between adjacent suspenders, connecting the same,and supported thereby, and center pieces carried by said supports.

5. The combination, with main supportingbeams, and a series ofsuspenders hung from the tops of said beams but depressed in theircentral portions below the tops of said beams, of center piece supportsarranged transversely between adjacent suspenders, connecting the same,and supported. thereby, center pieces carried by said supports, andconcrete or other plastic material supported by said center pieces andsuspenders.

6. The combination, with a series of suspenders suitably supported atthe ends and depressed at and near the center, of centerpieces betweensaid suspenders, center-piece supports connecting said center pieces tothe central depressedportions of said suspenders, and means forsupporting the center pieces adjacent to the inclined portions of saidsuspenders.

7. The combination, with a series of suspenders suitably supported,center pieces between the same, and center-piece supports connecting thecenter pieces to said suspenders, of beams of concrete or other plasticmaterial parallel with and embracing sai suspenders and supportedthereby and by the center pieces,the suspenders constituting tensionmembers of said beams, and flooring supported by said beams.

S. The combination, with main supportingbeams,suspenders connectedthereto and sup ported thereby and depressed at and near the center andcenter pieces carried thereby, the lower surfaces of said center piecesforming a substantially continuous ceiling, of beams of concrete orother plastic material carried by said center pieces and suspenders, andflooring supported by said beams.

In testimony whereof we affix our signatures in the presence of twowitnesses.

WILLIAM F. NVILMOTH. EDWARD 1. SMITH. STANLEY GOLLIEK.

Witnesses:

H. M. MARBLE, C. F. CARRINGTON.

